[Pacemaker] Pacemaker moving a sticky multi-state resource when another node is brought online

[Tupja, Ravik]

We're running version 1.1.5.  So I guess this would be fixed in 1.1.8
then.

-----Original Message-----
From: Andrew Beekhof [mailto:andrew at beekhof.net] 
Sent: Wednesday, October 31, 2012 9:04 PM
To: The Pacemaker cluster resource manager
Subject: Re: [Pacemaker] Pacemaker moving a sticky multi-state resource
when another node is brought online

On Wed, Oct 31, 2012 at 7:39 AM, Tupja, Ravik <RTupja at broadviewnet.com>
wrote:
> Hello,
>
>
>
> We have a multi-state resource called callp running in a 2 node 
> cluster (node A and node B).
>
>
>
> In a customer deployment, we had node A in which callp was running as 
> a master and in node B it was running as a slave.
>
>
>
> The following happened:
>
> 1 - Node B was placed in standby mode.  After this, callp (the 
> multi-state resource), was continuing to run as master on node A as
expected.
>
> 2 - Next, node B was placed in online mode.
>
> 3 - PROBLEM -> The cluster decided to move the master callp to node B 
> by demoting callp on node A and trying to promote it on node B.  This 
> is an undesirable operation.  The default stickiness level in our
cluster is set
> to 99 to prevent such movement of resources.   I have confirmed that
callp
> is using the default stickiness of 99.
>

Which pacemaker version?
This is a known problem in older versions but should be fixed in the
1.1.8 and 1.0.12

>
>
> Therefore, the cluster should not move callp when another node is 
> brought online due to the stickiness being 99.  I am not able to 
> reproduce the problem because it happens very rarely but I need to 
> know of a way to prevent this from happening again for sure.
>
>
>
> I would appreciate any help.
>
>
>
>
>
> Ravik Tupja
>
> Sen. Software Developer
>
> silhouette Research and  Development
>
> Broadview Networks
>
> p: +1.613.280.2010
>
> e: rtupja at broadviewnet.com
>
>
>
>
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